Constant power cycling for accelerated ageing of supercapacitors (original) (raw)
Related papers
Study of Accelerated Aging of Supercapacitors for Transport Applications
IEEE Transactions on Industrial Electronics, 2000
One important part of the electrical transportation systems is the energy storage system. This last can be based, for example, on supercapacitors. We propose in this work to study its behavior under constraints similar to their uses in power and railway traction systems. We define an adequate measurement protocols for accelerated aging which is applied to supercapacitors according to two accelerated factors, effective current and temperature. We model the supercapacitors for different states of health. The modeling gives a good estimation of the variation of electrical parameters of the supercapacitor at different states. We reveal general indicators of supercapacitor's aging and we discuss about its cycle life.
IEEE Transactions on Industrial Electronics, 2000
Due to its capacity to store or supply energy with high power, the supercapacitor is becoming an attractive component. Because of the electrostatic nature of energy storage, the endurance of this component toward repetitive charge and discharge cycles is relatively high. The goal of this paper is to demonstrate that the cycling has an impact on the degradation of the supercapacitor and as a result on its lifetime. Based on accelerated cycling tests, some supercapacitors were studied using a dedicated test bench. Temperature, voltage, and current, that are the parameters which accelerate ageing, are monitored. In fact, observations during cycling tests show an important acceleration of the degradation compared to a similar static test having the same voltage and core temperature but without cycling. This paper proposes a method to quantify the acceleration of ageing during cycling phase.
IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society, 2013
This paper proposes a new experimental investigation of the ageing mechanisms of supercapacitors. Starting from the main ageing mechanisms of these devices reported in the literature, the paper proposes a suitably developed procedure aimed at evaluating their ageing during combined life endurance and power cycling tests. In particular, the effect of the temperature (usually referred as life endurance) is evaluated in supercapacitors solicited with an a-priori defined power cycle. The effects of the temperature during the so-called recovering phase are also investigated. Each experimental finding is discussed by taking into account the phenomenon of the residual charge redistribution inside the supercapacitor electrodes.
Aging Mechanism and Models of Supercapacitors: A Review
Technologies
Electrochemical supercapacitors are a promising type of energy storage device with broad application prospects. Developing an accurate model to reflect their actual working characteristics is of great research significance for rational utilization, performance optimization, and system simulation of supercapacitors. This paper presents the fundamental working principle and applications of supercapacitors, analyzes their aging mechanism, summarizes existing supercapacitor models, and evaluates the characteristics and application scope of each model. By examining the current state and limitations of supercapacitor modeling research, this paper identifies future development trends and research focuses in this area.
Supercapacitor ageing at constant temperature and constant voltage and thermal shock
Microelectronics Reliability, 2010
This paper presents supercapacitor ageing according to the voltage, the temperature and thermal shock tests. To investigate this effect, a test bench of accelerated supercapacitor calendar ageing was carried out. Experimental tests are realized at constant temperature when the supercapacitors are polarized at the maximum voltage. To quantify the supercapacitor ageing, the equivalent series resistance (ESR) and the equivalent capacitance
Thermal cycling impacts on supercapacitor performances during calendar ageing
Microelectronics Reliability, 2013
In this paper, we focus on supercapacitors thermal cycling ageing at constant voltage. Obtained results are compared with those issued from calendar ageing at constant voltage and constant temperature. Experimental measurements from periodical characterization tests during calendar ageing up to 7500 h and results of characterization for thermal cycling test up to 2500 h are presented. A model for the supercapacitor performances prediction, in terms of capacitance and resistance evolution with ageing, is proposed and validated. Finally, the impact of the temperature cycling is highlighted and quantified.
Prediction of the Remaining Useful Life of Supercapacitors
Prediction of the Remaining Useful Life of Supercapacitors, 2022
As a new type of energy-storage device, supercapacitors are widely used in various energy storage elds because of their advantages such as fast charging and discharging, high power density, wide operating temperature range, and long cycle life. However, the degradation and failure of supercapacitors in large-scale applications will adversely a ect the operation of the whole system. To maximize the e ciency of supercapacitors without damaging the equipment and to ensure timely replacement before reaching the end of their useful life, it is critical to accurately predict the remaining useful life of supercapacitors. is paper presents a comprehensive review of model-based and data-driven approaches to predict the remaining useful life of supercapacitors, introduces the characteristics of the various methods, and foresees future trends, with the expectation of providing a reference for further research in this eld.
Calendar ageing and health diagnosis of supercapacitor
Electric Power Systems Research, 2013
A new method of supercapacitor online health diagnosis based on an electric model and on experimental results obtained by calendar ageing tests is proposed. The calendar ageing of supercapacitor is mainly related to thermal and voltage constraints from the application. This ageing causes the degradation of supercapacitor performances which can finally lead to failures. In vehicle applications, the goal is to avoid these failures which may have serious consequences and high non-quality costs. The device survey and ageing state detection are a priority for anticipating the problems. This paper presents the case of calendar ageing tests on supercapacitors made of activated carbon and organic electrolyte. The ageing is performed at constant temperature (65 • C) under a 2.9 Vdc bias voltage. These tests permit to highlight online and in real-time the measurable external indicators of ageing.
Thermal Cycling Impact on Supercapacitor Performance and Leakage Current under Constant Voltage Test
2015
In this paper, we present a comparative study that focus on Supercapacitor (SC) thermal cycling and calendar ageing under constant voltage tests. The impacts of cycling temperature on SC performance and degradation rate are studied. Obtained results from thermal cycling ageing test are compared with those coming from simple calendar ageing test at constant voltage and constant temperature. The comparison method used is based on physics modelling parameters evolution in the Multi-Pore (MP) and the Constant Phase Element (CPE) models. Parameters are calculated based on experimental measurements results up to 13000 h of ageing test. The impact of thermal cycling during ageing tests on the measured leakage current is also presented.
Ageing law for supercapacitors floating ageing
2014 IEEE 23rd International Symposium on Industrial Electronics (ISIE), 2014
Supercapacitors are energy storage systems appreciated as high power short duration power sources. As any electrochemical devices, supercapacitors are subject to ageing processes. Ageing is characterized by supercapacitors electrical performances loss (capacitance fades and Equivalent Series Resistance increases). In this article, we focus on capacitance fade with time for different sets of floating ageing constraints (constant temperature and voltage). This article deals with the best way for modeling capacitance fading with time for supercapacitors. Firstly, we present the approach of Eyring which predicts time for failure apparition. Then, we study two recent and uncommon ways for predicting capacitance evolution based on Langmuir isotherms and on the growth of a surface electrolyte interface. According to our study surface electrolyte interface approach appears more suitable for floating ageing modeling.